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Finding the Fourth Proportional to 30,797.84, 42,500.99 and 16,650.68

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Solution

The fourth proportional to 30,797.84, 42,500.99 and 16,650.68 is: 22,977.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,797.84 : 42,500.99 = 16,650.68 : x
  2. Step 2: Convert to fraction form
    30,797.84/42,500.99 = 16,650.68/x
  3. Step 3: Cross multiply
    30,797.84x = 42,500.99 × 16,650.68
  4. Step 4: Simplify right side
    30,797.84x = 707,670,384.17
  5. Step 5: Solve for x
    x = 707,670,384.17/30,797.84
  6. Step 6: Final answer
    x = 22,977.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.